downloading 3gp from email

Ok I have had terrible time w the android email app. I can't download 3pg files it doesn't even give me the option. So I went through the browser. When I attempt to download it says its not supported on the phone. What? How can this be if the camera records in the format and if I get a video via sms its fine. Thanks for the help The message i get is download unsucessful cannot download. the content is not supported on this phone.

Ok so i forward the email to my sms and i was able to view it. But this shouldnt be the way it works. I should be able to download the file from the browser. Please let me know if i am doing something wrong.